-
containing unborn fetuses,
indicating that
arthrodires gave
birth to live young. A
common misconception is the
arthrodires (along with all
other placoderms) were...
- laterally-projecting
articular facets compared to
other arthrodires.
Although many
arthrodires show the
incorporation of
anterior vertebrae into a synarcual...
-
primarily the
arthrodires, were active, n****nic
predators that
dwelled in the
middle to
upper portions of the
water column. A
study of the
arthrodire Compagopiscis...
-
Fitzroy Crossing. This
fossil fish
showed new
anatomical features in
arthrodires, like the well-preserved
annular (ring-shaped)
cartilages of the snout...
-
cuspidatus measuring 29.6–39.4 cm (11.7–15.5 in) long. Like all
other arthrodires,
Coccosteus had a
joint between the
armor of the body and skull. It also...
-
heterochrony has been an
important mechanism in the
evolution of the
arthrodires,
which include placoderms. Three-dimensional
uncrushed Incisioscutum...
- and
mandibles (holotype AMNH 81). Subsequently, many
unrelated large arthrodires were
originally classified together within this genus,
including species...
- over 20 cm (8 in) long. In
overall form, the
animal resembles primitive arthrodires, but the
anatomy of the jaws
strongly suggests the
anatomies of bony...
-
Devonian period. They are
considered to be
among the most
primitive of the
arthrodires, and are
widely accepted to be
phylogenetically basal to the group. The...
-
centimetres (4.5 in), with
tough plating on the
front of its body. Like
other arthrodires, such as
Coccosteus and the
giant Dunkleosteus, it had sharp, bony plates...
